[Linux-ia64] Kernel dumps stacks while calling exported function from a loadable module

["Jeff Lee" <jeff@falconstor.com.tw>]

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Hello everyone, 

I am having trouble in calling exported functions on my RH 7.2 box.
running 2.4.9-18 kernel.  The calling module causes kernel stack dumps
with messages like this:

insmod[1508]: Unimplemented Instruction Address fault 4398046511120
Using_Versions [] 0x2047fff <-- 
::

My modules are really trivial.  The one exported a dummy function is
listed below:

void dummy(void)
{
  printk("Dummy is called!\n");
}

int init_module(void)      
{ 
  printk("<1>Hello, world\n"); 
  return 0; 
}

And the calling module looks like this:

extern void dummy(void);

int init_module(void)      
{ 
  printk("<00>Hello, world\n"); 
  dummy();
  printk("done\n"); 
  return 0; 
}


The compilation line looks like this:

/opt/gcc3.1/bin/gcc -c -DLINUX -D__SMP__ -D"__BOOT_KERNEL_SMP=1"
-D"__BOOT_KERNEL_UP=0"  -O2 -Wall -Wstrict-prototypes  -D__ia64__ -D_LP64
-ffixed-r13 -mfixed-range=f10-f15,f32-f127 -falign-functions=32
-fno-common -Wno-unused -mb-step -I -I/usr/src/linux-2.4/drivers/scsi -I
-I/scsi  -I/usr/src/linux-2.4/drivers/scsi -DMODULE -DMODVERSIONS -include
/usr/src/linux-2.4/include/linux/modversions.h-D__KERNEL__  myhello1.c

The module that exports function loads without any problems but the
calling module fails.  

Any input regarding this matter is greatly appreciated.


Jeff Lee


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